Transparent envelope



FIG. 1 is a front elevational view showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an enlarged fragmented front elevational view thereof;

FIG. 5 is a fragmental right side elevational view of FIG. 4; and

FIG. 6 is a fragmented top plan view of FIG. 4. 

The ornamental design for a transparent envelope, as shown and described. 